<!DOCTYPE html>
 <html>
 <head>
     <title>动物世界</title>
     <style>
         body {
             background-color: #fffacd;
             text-align: center; 
         }
         h1 {
             color: #4169e1; 
             font-size: 24px; 
         }
         hr {
             width: 50%; 
             margin: 10px auto; 
         }
     </style>
 </head>
 <body>
     <h1>动物世界</h1>
     <hr>
     <img src="penguin.jpg" alt="企鹅" width="200" height="200"> 
     <img src="deer.jpg" alt="鹿" width="200" height="200"> 
 </body>
 </html>